Cost of a newborn circus elephant:

$100,000
An elephant also requires about $7,500 for general care annually, as well as $7,500 to insure it.
Source: Wall Street Journal, 8/12/2005

 
   
  Yearly cost to feed a circus elephant:

$11,000
An elephant costs an additional $20,000 a year to be transported from circus to circus
Source: Wall Street Journal, 8/12/2005